Discover companies from a natural-language description

Finds companies from a plain-language description. Returns every candidate that passes verification, one company per row: the ticker, the company name and the reason it matched. Use it when you do not know the ticker, then call the other endpoints with what it returns.

Example request: GET /api/v2/company-discovery?query=US%20companies%20that%20design%20GPUs%20for%20data%20centers&market=US